1300640560 has 20 divisors (see below), whose sum is σ = 3023989488. Its totient is φ = 520256192.

The previous prime is 1300640543. The next prime is 1300640603. The reversal of 1300640560 is 650460031.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1300640560² = 3383331732634227200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8128924 + ... + 8129083.

Almost surely, 2^1300640560 is an apocalyptic number.

1300640560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300640560 is an abundant number, since it is smaller than the sum of its proper divisors (1723348928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1300640560 is a wasteful number, since it uses less digits than its factorization.

1300640560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258020 (or 16258014 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1300640560 is about 36064.3946296066. The cubic root of 1300640560 is about 1091.5721107103.

The spelling of 1300640560 in words is "one billion, three hundred million, six hundred forty thousand, five hundred sixty".